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Principal Tunnel Designer

Mott MacDonald

Location: Greater London

Job Type: Full time


As a Principal Tunnel Designer you will be an important addition to our UK Tunnel Design resource. You will lead appropriately-sized teams in the design of large segmentally-lined tunnels. A significant proportion of the work is expected to be with design-and-build contractors. Design of both rail and road tunnels is likely.

Similar roles can be expected on future projects and leadership opportunities within our broader civil and transportation teams are also available.

Your responsibilities will also include the mentoring and guiding of early career professionals within the team

Required for the position of Principal Tunnel Designer:

Prime requirement is at least 15 years' experience of the design of tunnels and similar underground structures, especially for linings constructed behind large diameter TBMs.

You should also be able to demonstrate the following:

  • Degree in Engineering and/or Science
  • Chartered with a relevant professional institution
  • Proven track record in leadership of tunnels/ground engineering teams and of construction management and delivery.
  • Possession of strong problem-solving and inter-personal skills.
  • Good communication skill across all levels of the business (both written and verbal)
  • Previous experience of Design-and-Build projects
  • High level of accountability and independent decision making
  • Close collaborative working with colleagues, client, and delivery partners
  • Knowledge of relevant tunnel specifications and standards

If you meet 80% or more of what we're looking for, please still apply. We understand not everyone will meet all the requirements, but you might have skills we didn't know we need.

Benefits we offer:

  • Pension matched up to 7%
  • Life insurance
  • An annual professional institution subscription
  • Continuous development opportunities - because we want you to thrive
  • Agile/flexible working - because life isn't 9-5
  • Enhanced parental leave; shared parental leave policies - for parents and care givers
  • Annual company performance bonus scheme - Subject to company performance
  • Flexible benefits that suit you, including cycle to work & interest free season ticket loans .
  • The opportunity to make a difference; learn more about our social outcomes
  • Equality, diversity and inclusion

We put equality, diversity and inclusion at the heart of our business, seeking to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

If you have a disability and would prefer to apply in a different format or would like us to make reasonable adjustments to enable you to apply or attend an interview, please contact us at and we will talk to you about how we can assist.